Lanthanide-doped upconversion nanoparticles (UCNPs) possess the remarkable ability to
convert multiple near-infrared (NIR) photons into higher energy ultraviolet–visible (UV–vis) …

Rare-earth-doped upconversion nanoparticles are attracting considerable attention because
of their stable, coherent, narrowband and multi-colour luminescence, which features less …

Optical manipulation has achieved great success in the fields of biology, micro/nano robotics
and physical sciences in the past few decades. To date, the optical manipulation is still …

During the last decade, new unusual physical phenomena have been discovered in
studying the optics of dielectric mesoscale particles of an arbitrary three-dimensional shape …

Semiconducting colloidal quantum dots and their assemblies exhibit superior optical
properties owing to the quantum confinement effect. Thus, they are attracting tremendous …

Upconversion nanoparticles are a class of luminescent materials that convert longer-
wavelength near-infrared photons into visible and ultraviolet emissions. They can respond to …

Lanthanide (Ln3+)-doped photon avalanche (PA) upconversion nanoparticles (UCNPs)
have great prospects in many advanced technologies; however, realizing efficient PA …